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Abidali, A F (1990) A methodology for predicting company failure in the construction industry, Unpublished PhD Thesis, Department of Civil and Building Engineering, Loughborough University.

  • Type: Thesis
  • Keywords: A-score; company failure; contractor; insolvency; prototype development; questionnaire survey; Z-score
  • URL: https://hdl.handle.net/2134/7034
  • Abstract:
    This thesis develops the theory of failure prediction for UK construction companies. A questionnaire was devised and included 17 questions related to failure for both an "at risk" group classified as vulnerable, i.e. those scoring negatively by the Z-score model and a positively scoring "solvent" group. The existence of managerial factors related to failure was investigated in the questionnaire using a multiple choice method. Both groups proved adequate for comparison purposes, and were, therefore, included in the A-score model. The A-score for a company is obtained by adding the weight of all factors and errors together, and a cut-off value determined. The model was statistically verified by the t-test method at 1% significant level and further examined by the Willcoxon (Rank Sum) tests null hypothesis rejected at 5% level of significance. An attempt was also made to relate A-score and Z-score values, unfortunately statistical analysis indicated only 68% intercorrelation between A-score and Z-score, i.e. not very strong. However, the Z-score value of zero corresponded to an A-score cut-off value of about 50, these being critical values in both modes. Finally, trend analysis was shown to be a suitable extra check in objective evaluation of company performance, and an improved method of systematically appraising contractors was produced. However, the developed models should only be used as part of an overall assessment of company stability. Any predictions should be interpreted with caution as the models require further testing on a broader range of companies. It is also important to appreciate that the use of such models to exclude ocmpanies from tender lists could accelerate or even cause failure.